Mold.



M. OZEE. MOLD.

APPLIOATION FILED JAN. 1a. 1904.

2 sums-SHEET 1.

N0 MODEL.

fk5/z l r9 m @EST AVMLAELE CGV No. 767,829. PATENTED AUG. 16, 1904. J. M. OZEE.

MOLD.

APPLICATION FILED JAN. 19. 1904.

No MODEL. 2 SHEETS-SHEET 2.

.eterea 7.a,

Patented August 16, 1904.

PATENT OFFICE.

essi AvAiLAsLE coe JOSEPH M. OZEE, OF ST. LOUIS, MISSOURI. A

MOLD.

SPECIFICATION forming part of Letters Patent No. 767,829, dated August 16, 1904:.

' Appnauon ned January 19, 1904. serial No. 189.769. No man.)

full, clear, and exact description, reference being had to the accompanying drawings, forming a part hereof.v

My invention relates to improvements in molds; and it consists of the novel construction, combination, and arrangement of parts hereinafter shown, described, Vand claimed.

' The object of this invention is to construct a mold having hinged sides and ends supporting a plaster-ofparis form in which terragetta, cement, or the like iscast under pressure. c In the drawings, Figure 1 is a perspective View of my invention with part of the cover l broken away, showing the relation of the va- Vjfrious parts.

"'f-ztional view showing the plunger in position i when forming the terra-cotta or cement cast.

Fig. 2,is a vertical cross-sec- Fig. 3 is a detail perspective view of the cover, showing its construction. Fig. 4 is a perspective view of the plunger made use' of in forming the cast within the mold.

1n the construction of the device as shown I' provide a' base 5, preferably composed of metal and mounted upon a truck 6. The ends and sides of the base 5 are provided with ears 7, which act as one member of a hinge, to which is pivotally connected the other member 8 of the hinge formed on the ends 9 and sides 10.4 The vends of the sides 1() are provided with a continuous flange 11, arranged to fit over the edge of the ends 9, preventing said ends from becoming detached when the said ends and sides are folded together. A cover 12, provided with a flange 13, is placed upon the top of the sides and ends and supports the same. The cover 12 is provided with two elongated openings 14, through which the materlal to be cast is poured, which openings also act as a passage for the plunger 15, which.

is brought in contact with the material placed Within the mold by a mechanical press of any convenient construction. Within the mold is placed the form 16, preferably composed of plaster-of-paris anwd ar r a pged,in t e ia e desire and in tie receptacle formed by; the

walls-:Ind bottom of the laster-ofaris form the material is shaped an allowed to iar en, which is afterward removed and placed within the kiln for the burning process. To the sides and ends are pivotally connected a tightening device 17, composed of two members 18 and 19, the member 18 being provided on one end with aring 20, fitting over a disk 21, and the member 19 being pivot-ed eccentrically to the disk 21, so that'the members 18 and 19 are reciprocated to or from each other by the rotation of the disk 21 in the ring 20. Each free end of the members 18 and 19 is provided with ahook 22, which hooks are arranged to Acome in contact with the under portion of the mold and-over the cover 12. The hooks 22 are screw-threaded upon the ends of .the members 18 and 19, so that they may be turned out of engagement, when desired to swing the sides and ends of theimold upon the hinges connecting the sides and ends of the base 5.. The disk 21 is provided with a handie 23,- by which the tightening device is operated, and by the manipulation of the same the disk will be rotated, drawing the portions together, and by opposite movement will release the same. The hooked ends 22 are preferably swiveled to the members`18 and 19, so

that the same may be placed out of contact when desiring to remove the cover 12ll The fastening device is preferably supported against the side and end of the mold by the brackets 24. v

The ends 9 of the mold are provided with trunnions 25, over which the chains of a crane are adapted to be placed for hoisting the entire mold, inverting the same, removing the cover and delivering the 'cast Without the destruction of the mold, which is the present practice.

The operation of my invention is as follows: The plaster-of-paris form 16 is placed in position upon the base of the mold. The ends and sides are folded together, and the cover 12 is placed upon the ends and sides. The fastening devices are then operated. The hooks of the fastening devices are brought into contact with the opposite ends of the mold and the same IOO and ends; fastening tightened. lhe material is then poured into the receptacle formed by the plaster-of-paris form. The plunger' 15 is then inserted through the open ing 11i of the cover, pressure being applied thereon, packing' the material Within the mold, and the surplus allowed to escape through the opening 26 formed in the cover opposite to one of the openings 14. The plunger 15 is allowed to remain Within the material sufliciently long for said material to set and retain its shape, the depression Within the cast caused by the plunger retaining its shape, which is preferably designed for the purpose of making a cast which is durable, and yet of as little material as possible.

I claiml. A mold of the class described, comprising a base; sides and ends hingedly mounted upon the base;

devices carried by the sides and ends for holding the members in operative position; there being' openings in the cover for the admission of plungers for compressing the material; and there being an opening in the cover through which the surplus material may escape; substantially as specified.

2. A mold of the class described, comprising a base mounted upon a truck, sides and ends hingedly mounted upon said base, a

a cover resting upon the sides BEST AVAILABLE COF" ianged cover located upon the top of said sides and ends, fastening devicescarried by the sides and ends for supporting the mold when placed in operative position, and openings formed in the cover for the admission of plungers for compressing the material to be cast, substantially as specified.

3. A mold of the class described, comprising a base; sides and ends hingedly mounted upon the base; a cover located on top of the Sides and ends; there being openings through the cover for the admission of plungers for l compressing the material to be cast; an opening for the escape of the surplus material; 'and fastening devices for holding the members of the mold in operative position; each of said fastening devices comprising the members 18 and 19 slidingly mounted; a ring 2O upon the end of the member 18; a disk 21 iitting in the ring 2O and pivoted eccentrically to the member 19; and hooks upon the ends of said members 18 and 19; substantially as specified.

In testimony whereof I have signed my name to this specification in lpresence of two subscribing Witnesses.

JOSEPH M. OZEE.

Witnesses: l

ALFRED A. EIoKs, M. G.,IRIoN. 

